I wont be near a computer to check it until after the weekend (on my phone now). But I think you need to specifiy the symbol & period to keep MT4 happy. Like this:
iTime(NULL,0,0)
or:
iTime("EURUSD", PERIOD_H1, 0)
iTime(NULL,0,0)
or:
iTime("EURUSD", PERIOD_H1, 0)